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TECHNICAL NOTICE (December 12, 2019)
Additions to Source Codes for Vocabularies, Rules, and Schemes

Network Development and MARC Standards Office
Library of Congress

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The source codes listed below have been recently approved. The codes will be added to the applicable Source Codes for Vocabularies, Rules, and Schemes<https://www.loc.gov/standards/sourcelist/> lists. See the specific source code lists for current usage in MARC fields and MODS/MADS elements.

The codes should not be used in exchange records until 60 days after the date of this notice to provide implementers time to include newly-defined codes in any validation tables.

Subject Heading and Term Source Codes

The following source codes have been added to the Subject Heading and Term Source Codes<https://www.loc.gov/standards/sourcelist/subject.html> list for usage in appropriate fields and elements.

  *   Additions:
     *   aatnor - Art and architectural thesaurus terms translated into Norwegian (Norway: Directorate for ICT and Joint Services in Higher Education and Research)
     *   cgndb - Canadian Geographical Names Database (Natural Resources Canada)
     *   gpn - Gazetteer of planetary nomenclature
     *   peakbag - Peakbagger.com
     *   tsaij - Tesauro SAIJ de Derecho Argentino (Sistema Argentino de Información Jurídica)

The Library of Congress, Network Development and MARC Standards Office provides information about existing and newly assigned MARC codes on its Web site (www.loc.gov/marc/<https://www.loc.gov/marc/>) as well as notices such as these to subscribers to its MARC listserv.